基于DEM的太湖流域水文特征提取  

Hydrological Feature Extraction of Taihu Lake Basin Based on DEM

作　　者：李晶[1] 张征[1] 朱建刚[1] 牟向玉[1] 刘淑春[1] 罗柳红[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《环境科学与管理》2009年第5期138-142,共5页Environmental Science and Management

摘　　要：文章选取太湖流域作为研究对象,采用1:25万中比例尺DEM作为基础数据,应用ESR I公司开发的ArcG IS地理信息系统软件进行流域水文特征提取,得到了研究区域水流流向、汇流栅格生成、河网水系、子流域边界等流域特征信息,经与标准河流水系特征对照,认为基于DEM提取的太湖流域水文特征信息是合理的,可作为基础信息,为太湖流域生态环境治理实践及理论研究提供数据支撑。The paper studies how to use ArcGIS, a Geographic Information System software, to extract hydrological features of Taihu Lake Basin based on 1：250000 scale DEM. With analysis of AreGIS, the hydrological features about Taihu Lake Basin, such as flow direction, stream networks and other catchment properties are collected. Comparing with standard catchment properties, the hydrological features of Taihu Lake Basin extracted from DEM is reasonable, and can be used as basic information for the eco-environmental practice and theoretical research.

关 键 词：DEM 流域水文分析 河网 特征提取 

分 类 号：X524[环境科学与工程—环境工程]